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一种宽带可重构反射型极化旋转表面

于惠存 曹祥玉 高军 杨欢欢 韩江枫 朱学文 李桐

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一种宽带可重构反射型极化旋转表面

于惠存, 曹祥玉, 高军, 杨欢欢, 韩江枫, 朱学文, 李桐

Broadband reconfigurable reflective polarization convertor

Yu Hui-Cun, Cao Xiang-Yu, Gao Jun, Yang Huan-Huan, Han Jiang-Feng, Zhu Xue-Wen, Li Tong
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  • 将超材料设计思想与微电机系统(micro-electro-mechanical system,MEMS)技术相结合,提出了一种宽带可重构反射型极化旋转表面.该结构由上层方形金属贴片、中间介质层、金属底板以及连接贴片与底板的金属通孔构成,通过在电流短路点处加载MEMS开关,使其具有电可调特性.仿真结果表明,当MEMS开关导通时,该结构能在7.78 GHz–14.10 GHz频带内将入射的线极化波转化为正交极化波并反射;当MEMS开关断开时,入射波则以同极化全反射.加工了实际的样品并进行了测试,结果与仿真符合较好.该结构具有结构简单易加工、器件个数少、工作频带宽、损耗低等优点,在电磁波动态调控中具有潜在应用价值.
    With the rapid evolution of radar technology and mobile communication systems, polarization conversion has received much attention from academia and industry in recent years, which has the advantages of improving system performance through eliminating multipath fading. In this paper, a novel broadband reconfigurable reflective polarization convertor is designed, which combines the idea of metamaterial and the technology of micro-electro-mechanical system (MEMS) switches. The proposed structure consists of three layers: an upper metallic patches layer, a middle dielectric layer with a thickness of 2 mm, and a bottom metal plate. There are through-holes of metal connecting the upper and bottom layers. According to the simulation using HFSS software, when the MEMS switch is on, the device works with a relative bandwidth of 57.77% from 7.78 GHz to 14.10 GHz, of which the polarization conversion ratio is larger than 80%. In addition, at 7.62 GHz and 12.56 GHz, the reflected wave is a right-hand circularly polarized wave and a left-hand circularly polarized wave, respectively. When the MEMS switch is off, the reflected wave is in the same polarization, which means the device does not convert the polarization of electromagnetic wave anymore. The electromagnetic wave are decomposed into the u-v coordinate system to further understand the wideband polarization rotation. The reflection phase and the surface current distributions of the convertor are analyzed. Then, the working principle of polarization rotation is explained by analyzing the current distributions and explaining the theory from three different viewpoints. Finally, a 1225-cell (35×35) prototype is fabricated to verify the simulation results. The measured curve has three resonant frequencies and shifts towards the lower frequency slightly. The discrepancy between simulations and measurements is mainly attributed to the restriction of fabrication and measurement condition. In general, experimental results are in agreement with the simulations: when linear polarized wave is incident, the reflected wave realizes the transition from co-polarization to cross-polarization as the switch is switched from off to on. The proposed reconfigurable polarization rotation surface has advantages of broadband, low loss and ease of fabrication, which has great potential applications in antenna radiation, reducing the radar cross section and other territories in controlling electromagnetic wave dynamically.
      通信作者: 曹祥玉, xiangyucaokdy@163.com;gjgj9694@163.com ; 高军, xiangyucaokdy@163.com;gjgj9694@163.com
    • 基金项目: 国家自然科学基金(批准号:61471389,61671464,61701523,61801508)、博士后创新人才支持计划(批准号:BX20180375)和陕西省自然科学基金(批准号:2018JM6040)资助的课题.
      Corresponding author: Cao Xiang-Yu, xiangyucaokdy@163.com;gjgj9694@163.com ; Gao Jun, xiangyucaokdy@163.com;gjgj9694@163.com
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 61471389, 61671464, 61701523, 61801508), the Postdoctoral Innovative Talents Support Program of China (Grant No. BX20180375), and the Natural Science Foundation of Shannxi Province, China (Grant No. 2018JM6040).
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    Ji L Y, Qin P Y, Guo Y J, Ding C, Fu G, Gong S X 2016 IEEE Trans. Antennas Propag. 64 4534

    [2]

    Hu J, Luo G Q, Hao Z C 2018 IEEE Access 6 6130

    [3]

    Cai L P, Cheng Y F, Cheng K K M 2017 IEEE Asia Pacific Microwave Conference Kuala Lumpur, Malaysia, November 13-16, 2017 p112

    [4]

    Zhang M T, Gao S, Jiao Y C, Wan J X, Tian B N, Wu C B, Farrall A J 2016 IEEE Trans. Antennas Propag. 64 1634

    [5]

    Fartookzadeh M 2017 Appl. Phys. B 123 115

    [6]

    Su P, Zhao Y, Jia S, Shi W, Wang H 2016 Sci. Rep. 6 20387

    [7]

    Sui S, Ma H, Wang J, Feng M, Pang Y, Xia S, Xu Z, Qu S 2016 Appl. Phys. Lett. 109 063908

    [8]

    Han J F, Cao X Y, Gao J, Li S J, Zhang C 2016 Acta Phys. Sin. 65 044201 (in Chinese) [韩江枫, 曹祥玉, 高军, 李思佳, 张晨 2016 物理学报 65 044201]

    [9]

    Cheng H, Chen S Q, Yu P, Li J X, Deng L, Tian J G 2013 Opt. Lett. 38 1567

    [10]

    Doumanis E, Goussetis G, Dickie R, Cahill R, Baine P, Bain M, Fusco V, Encinar J A, Toso G 2014 IEEE Trans. Antennas Propag. 62 2302

    [11]

    Wu P C, Yan L B, Song Q H, Zhu W M, Zhang W, Tsai D P, Capasso F, Liu A Q 2015 Conference on Lasers and Electro-Optics San Jose, California United States, May 10-15, 2015 STh1M.6

    [12]

    Li W T, Gao S, Cai Y M, Luo Q, Sobhy M, Wei G, Xu J D, Li J Z, Wu C Y, Cheng Z Q 2017 IEEE Trans. Antennas Propag. 65 4470

    [13]

    Yi G W, Huang C, Ma X L, Pan W B, Luo X G 2014 Microwave Opt. Technol. Lett. 56 1281

    [14]

    Ma X L, Pan W B, Huang C, Pu M B, Wang Y Q, Zhao B, Cui J H, Wang C T, Luo X G 2015 Adv. Opt. Mater. 2 945

    [15]

    Cui J H, Huang C, Pan W B, Pu M B, Guo Y H, Luo X G 2016 Sci. Rep. 6 30771

    [16]

    Tao Z, Wan X, Pan B C, Cui T J 2017 Appl. Phys. Lett. 110 121901

    [17]

    Zhang M, Zhang W, Liu A Q, Li F C, Lan C F 2017 Sci. Rep. 7 12068

    [18]

    Wang F W, Guo L X, Gong S X 2018 J. Xidian Univ. 45 80 (in Chinese) [王夫蔚, 郭立新, 龚书喜 2018 西安电子科技大学学报(自然科学版) 45 80]

    [19]

    Sun H Y, Gu C Q, Chen X L, Li Z, Liu L L 2017 Appl. Phys. 121 174902

    [20]

    Jiang H Y N, Lei W, Wang J, Akwuruoha C N, Cao W P 2017 Opt. Express 25 27616

    [21]

    Yang H H, Cao X Y, Yang F, Gao J, Xu S H, Li M K, Chen X B, Zhao Y, Zheng Y J, Li S J 2016 Sci. Rep. 6 35692

    [22]

    Jia Y T, Liu Y, Zhang W B, Gong S X 2016 Appl. Phys. Lett. 109 051901

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出版历程
  • 收稿日期:  2018-05-28
  • 修回日期:  2018-09-12
  • 刊出日期:  2019-11-20

一种宽带可重构反射型极化旋转表面

    基金项目: 国家自然科学基金(批准号:61471389,61671464,61701523,61801508)、博士后创新人才支持计划(批准号:BX20180375)和陕西省自然科学基金(批准号:2018JM6040)资助的课题.

摘要: 将超材料设计思想与微电机系统(micro-electro-mechanical system,MEMS)技术相结合,提出了一种宽带可重构反射型极化旋转表面.该结构由上层方形金属贴片、中间介质层、金属底板以及连接贴片与底板的金属通孔构成,通过在电流短路点处加载MEMS开关,使其具有电可调特性.仿真结果表明,当MEMS开关导通时,该结构能在7.78 GHz–14.10 GHz频带内将入射的线极化波转化为正交极化波并反射;当MEMS开关断开时,入射波则以同极化全反射.加工了实际的样品并进行了测试,结果与仿真符合较好.该结构具有结构简单易加工、器件个数少、工作频带宽、损耗低等优点,在电磁波动态调控中具有潜在应用价值.

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